Applicability of a Lactobacillus amylovorus strain as co-culture for natural folate bio-enrichment of fermented milk
| Autor: | Marianela Juárez del Valle, Graciela Savoy de Giori, Jean Guy LeBlanc, Jonathan Emiliano Laiño |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Vitamin
Streptococcus thermophilus Otras Ingenierías y Tecnologías Gram-positive bacteria INGENIERÍAS Y TECNOLOGÍAS Microbiology Alimentos y Bebidas Mice chemistry.chemical_compound Folic Acid LACTIC ACID BACTERIA Lactobacillus LACTOBACILLUS AMYLOVORUS Animals Food microbiology biology Strain (chemistry) food and beverages General Medicine FERMENTED MILK Yogurt biology.organism_classification Coculture Techniques Lactic acid Milk chemistry Fermentation Food Microbiology Food Science FOLATE |
| Popis: | The ability of 55 strains from different Lactobacillus species to produce folate was investigated. In order to evaluate folic acid productivity, lactobacilli were cultivated in the folate-free culture medium (FACM). Most of the tested strains needed folate for growth. The production and the extent of vitamin accumulation were distinctive features of individual strains. Lactobacillus amylovorus CRL887 was selected for further studies because of its ability to produce significantly higher concentrations of vitamin (81.2 ± 5.4. μg/L). The safety of this newly identified folate producing strain was evaluated through healthy experimental mice. No bacterial translocation was detected in liver and spleen after consumption of CRL887 during 7 days and no undesirable side effects were observed in the animals that received this strain. This strain in co-culture with previously selected folate producing starter cultures (Lactobacillus bulgaricus CRL871, and Streptococcus thermophilus CRL803 and CRL415) yielded a yogurt containing high folate concentrations (263.1 ± 2.4. μg/L); a single portion of which would provide 15% of the recommended dietary allowance. This is the first report where a Lactobacillus amylovorus strain was successfully used as co-culture for natural folate bio-enrichment of fermented milk. Fil: Laiño, Jonathan Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina Fil: Juarez del Valle, Marianela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina Fil: Savoy, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina Fil: Leblanc, Jean Guy Joseph. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina |
| Databáze: | OpenAIRE |
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